/Engine/Source/Runtime/Engine/Classes/Particles/ParticlePerfStatsManager.h
Track active worlds needing to render stats. Though we only create one listener. TODO: Maybe better to track by viewport than world?
static [TMap](API\Runtime\Core\Containers\TMap)< [TWeakObjectPtr](API\Runtime\Core\UObject\TWeakObjectPtr)< [UWorld](API\Runtime\Engine\Engine\UWorld) >, [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FParticlePerfStatsListener_DebugRender](API\Runtime\Engine\Particles\FParticlePerfStatsListener_Debug-),ESPMode::ThreadSafe > > DebugRenderListenerUsers;